William ii



(No Model.)

w. H. DEANR ELECTRIC ALARM FOR CLOCKS. No. 435,213 Patented Aug. .26,1890.

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I I HI 1 W n o 0' 1 I o n I! n I WITNESSES. INXENTOR: V aF/zzc/awm. 52

4770/?NEYS UNITED STATES WILLIAM H. DEANE, on BROOKLYN,

NEWV YORK, ASSIGNOR TO HIMSELF AND .T. J. MAHON, OF SAME PLACE.

ELECTRIC ALARM FOR CLOCKS.

SPECIFICATION forming part of Letters Patent No. 435,213, dated August26, 1890.

Application filed January 30,1890. Serial No. 338,604.- (No model.)

T0 410% whom it may concern.-

Be it known that 1, WILLIAM H. DEANE, of Brooklyn, in the county ofKings and State of New York, have invented a new and 1111- provedElectric Alarm for Clocks, of which the following is a specification,reference being had to the annexed drawings, forming a part thereof, inwhich- Figure 1 is a rear elevation of my improved electric alarm forclocks. Fig. 2 is avertical transverse section taken on line y y in Fig.l, and Fig. is a horizontal sect-ion taken on line a; in Fig. 1.

Similar letters of reference indicate corresponding parts in all theviews.

he object of my invention is to provide a simple and effective devicefor attachment to clocks for giving an alarm at a predetermined time.

My invention consists in the combination, with the hour-hand arbor ofthe clock or of some other rotating part-such as the winding-arbor ofthe alarm mechanism-of a ring or apertured key adapted to receive aweight, a circuit-closing lever connected with the weight by a chain, abattery and electric bell, and the electrical connections, all as willbe hereinafter more fully described.

The box A, which contains the battery 13, is provided with a back a,which is extended above the top of .he body of the box. To the front ofthe box is attached an electric bell O, which is of the usualconstruction. The clock E rests upon the box A and is provided with aring F, which may serve as a windingkey to the alarm mechanism, or itmaybe attached to some other moving portion of the clock.

In the extension to is inserted a contactstud b, and to the extension ispivoted a lever G, the longer arm of which extends under thecontact-stud b, and the shorter arm extends under the ring F. In thering F is loosely placed a Weight H, which is connected with the shorterarm of the lever G by a chain c.

The pivot of the lever G is connected with one pole of the battery B.The other pole of the battery is connected with one bindingpost of thebell C, and the remaining bind ing-post is connected with thecontact-stud b.

\Vhen the clock in its operation turns the ring F so as to release theweight. H, the said weight drops and brings the longer arm of the leverG into contact with the stud b,thus closing the circuitand causing theelectric bell to sound until the weight H is replaced in the ring or inthe supporting-ring F, pro jecting from the extension a.

Having thus described my invention, I claim as new and desire to secureby Letters Patent- 1. In an electric alarm for clocks, the combinationof a weight adapted to be released by a clock, electric-oircuit-closingmechanism operated by the weight, and a battery and alarm device,substantially as specified.

2. The combination of the battery B, the box A, the electric bell O,theclock E, provided with the ring F, the lever G, the weight H, thecontact-stud b, and the electrical connections, substantially asspecified.

WILLIAM H. DEANE.

Witnesses:

Gno. M. HOPKINS, C. SEDeWIcx.

